Uma ibanga lokudlulisela lilide kakhulu (ngaphezu kuka-100 km), isignali ye-optical izoba nokulahlekelwa okukhulu.Esikhathini esedlule, abantu babevame ukusebenzisa iziphindaphinda ze-optical ukuze bakhulise isignali yokubona.Lolu hlobo lwesisetshenziswa lunemikhawulo ethile ekusebenzeni okungokoqobo.Kufakwe esikhundleni i-optical fibre amplifier.Umgomo wokusebenza we-optical fiber amplifier uboniswa esithombeni esingezansi.Ingakwazi ukukhulisa ngokuqondile isignali ye-optical ngaphandle kokudlula inqubo yokuguqulwa kwe-optical-electrical-optical.
Isebenza kanjani i-fiber amplifier?
Uma ibanga lokudlulisela lilide kakhulu (ngaphezu kuka-100 km), isignali ye-optical izoba nokulahlekelwa okukhulu.Esikhathini esedlule, abantu babevame ukusebenzisa iziphindaphinda ze-optical ukuze bakhulise isignali yokubona.Lolu hlobo lwesisetshenziswa lunemikhawulo ethile ekusebenzeni okungokoqobo.Kufakwe esikhundleni i-optical fibre amplifier.Umgomo wokusebenza we-optical fiber amplifier uboniswa esithombeni esingezansi.Ingakwazi ukukhulisa ngokuqondile isignali ye-optical ngaphandle kokudlula inqubo yokuguqulwa kwe-optical-electrical-optical.
Yiziphi izinhlobo zama-fiber amplifier ezikhona?
1. I-Erbium-doped fiber amplifier (EDFA)
I-Erbium-doped fibre amplifier (EDFA) ikakhulukazi yakhiwe i-erbium-doped fiber, umthombo wokukhanya wepompo, i-optical coupler, i-optical isolator, nesihlungi sokubona.Phakathi kwazo, i-erbium-doped fiber iyingxenye ebalulekile yokukhulisa isignali ye-optical, esetshenziselwa kakhulu ukufeza ukukhulisa isignali ye-1550 nm Band, ngakho-ke, i-erbium-doped fiber amplifier (EDFA) isebenza kahle kakhulu ebangeni le-wavelength le-1530 nm kuya. 1565 nm.
Ainzuzo:
Ukusetshenziswa kwamandla kwephampu okuphezulu kakhulu (ngaphezulu kuka-50%)
Ingakwazi ukukhulisa ngokuqondile futhi ngesikhathi esisodwa isignali ye-optical ebhendini engu-1550 nm
Thola ngaphezu kuka-50 dB
Umsindo ophansi ekudluliselweni kwebanga elide
ukushiyeka
I-Erbium-doped fiber amplifier (EDFA) inkulu
Lesi sixhobo asikwazi ukusebenza ngokubambisana nezinye izinto zokusebenza ze-semiconductor
2. Raman amplifier
I-Raman amplifier iyona kuphela idivayisi engakhulisa amasignali okubona kubhendi engu-1292 nm~1660 nm.Umgomo wayo wokusebenza usekelwe kumphumela ogqugquzelwe wokuhlakazeka kwe-Raman ku-quartz fiber.Njengoba kuboniswe emfanekisweni ongezansi, lapho ukukhanya kwepompo kudonswa Lapho isignali yokukhanya ebuthakathaka ku-Mann ithola umkhawulokudonsa kanye negagasi lokukhanya kwepompo elinamandla lidluliselwa kanyekanye ku-fiber optical, isignali yokukhanya ebuthakathaka izokhuliswa ngenxa yomphumela wokuhlakazeka kwe-Raman. .
Ainzuzo:
Ibanga elibanzi lamabhendi asebenzayo
Ingasetshenziswa ezinhlelweni ezifakiwe ze-fiber cabling zemodi eyodwa
Ingakwazi ukwengeza ukusilela kwe-erbium-doped fiber amplifier (EDFA)
Ukusetshenziswa kwamandla okuphansi, i-crosstalk ephansi
ukushiyeka:
Amandla epompo aphezulu
Isistimu yokulawula inzuzo eyinkimbinkimbi
Kunomsindo
3. I-semiconductor optical fiber amplifier (SOA)
Ama-amplifiers e-semiconductor optical fiber (SOA) asebenzisa izinto ze-semiconductor njengemithombo yezindaba, futhi okokufaka kwabo kwesignali ye-optical kanye nokuphumayo kunezingubo zokulwa ne-reflection ukuvimbela ukucabangela ebusweni bokuphela kwe-amplifier futhi kuqede umphumela we-resonator.
Ainzuzo:
umthamo omncane
Amandla okukhiphayo aphansi
I-bandwidth yokuzuza incane, kodwa ingasetshenziswa kumabhendi amaningi ahlukene
Ishibhile kune-erbium-doped fiber amplifier (EDFA) futhi ingasetshenziswa nemishini ye-semiconductor.
Imisebenzi emine engaqondile yokuguqulwa kwe-cross-gain modulation, ukuguquguquka kwesigaba esiphambene, ukuguqulwa kwe-wavelength kanye nokuxutshwa kwamagagasi amane kungenziwa.
ukushiyeka:
Ukusebenza akuphakeme njenge-erbium-doped fiber amplifier (EDFA)
Umsindo ophezulu kanye nenzuzo ephansi
Isikhathi sokuthumela: Sep-17-2021